Localization and delocalization in dirty superconducting wires
Preprint
- 1 February 2000
Abstract
We present Fokker-Planck equations that describe transport of heat and spin in dirty unconventional superconducting quantum wires. Four symmetry classes are distinguished, depending on the presence or absence of time-reversal and spin rotation invariance. In the absence of spin-rotation symmetry, heat transport is anomalous in that the mean conductance decays like $1/\sqrt{L}$ instead of exponentially fast for large enough length $L$ of the wire. The Fokker-Planck equations in the presence of time-reversal symmetry are solved exactly and the mean conductance for quasiparticle transport is calculated for the crossover from the diffusive to the localized regime.
Keywords
All Related Versions
- Version 1, 2000-02-01, ArXiv
- Published version: Physical Review Letters, 85 (5), 1064.
This publication has 0 references indexed in Scilit: